I know that if I make a redstone circuit that switches too often, my redstone torches will 'burn out' and stop working. Under what circumstances does this happen? Will a slow circuit eventually burn out? If not, what's the maximum 'clock speed' for a circuit such that it will never burn out?

2 Answers
2

The fastest clock that will not burn out is the 4-clock. A common design is this one:

- =wire
r =repeater
- r -
r r
- r -

I think all repeaters must be set to 4 to remain stable, but I've been fine setting them to 3 before.

Edit: I did some research, to investigate. I have found that a torch needs at least 8 ticks total delay between pulses to prevent burnout. So the repeater clock with 4 repeaters should be set to at least 2 ticks each.

My basic setup:

Basically, my experiment involved that basic repeater clock hooked up to 4 torches. I started with them each at 1 tick delay, and, as expected, all of the torches burnt out very quickly. I increased the delay on the repeaters one by one until the torches stopped burning out. This point came when each repeater was at 2 ticks delay (though the torches were probably pulsing too quickly for most devices).

Though it should be noted that torches can be extremely buggy sometimes; sometimes, pulling a lever will burn a torch out...

But wouldn't a piston clock going faster than the 4-clock cause other circuitry to burn out?
–
fredley♦Feb 27 '12 at 13:42

That is true. If you have it hooked up to other torches, then 4 is the number to shoot for (though a lot of times, I try to adapt my circuitry so I don't have to deal with it)
–
UnionhawkFeb 27 '12 at 13:47

Can you elaborate on the research you did? This is shaping up to be a great answer, but it needs to be perfect before I'll accept it :-P
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fredley♦Feb 29 '12 at 14:21